চতুর্থ অধ্যায়ঃ চলন ও গমন

চলন ও গমন

[ Circulation ]

[ Syllabus: Difference between movement and locomotion Purpose of locomotion. Mention locomotory organs in amoeba, earthworm, cockroach and fish. Mention the role of myotomes and fins in fish locomotion, Bipedal locomotion in Man - details of structure and mechanism not needed. Absence of locomotory organs in majority of plants. Types of movements in plants: (i)Tactic (ii)Tropic (phototropic, Geotropic and Hydrotropic) (iii) Nastic. ]